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acos

(PHP 4, PHP 5, PHP 7)

acosArc cosine

Açıklama

acos ( float $arg ) : float

Returns the arc cosine of arg in radians. acos() is the inverse function of cos(), which means that a==cos(acos(a)) for every value of a that is within acos()' range.

Değiştirgeler

arg

The argument to process

Dönen Değerler

The arc cosine of arg in radians.

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